epidemic vs pandemic
how does diseases spread
epidemic
how do epidemics end
what is a pandimc
when a large number of people get infected in one reagan
causes of an epidemic
infected water and food
increase in virales of a disses
introduction of a new diseases
a new diseases
lower resistant to a desises
disaster of war
insects
air born
food and water
calera
malaera
infuinza
fewer host
change of weather or season
herd immunity
it is when a epidemic spread to other countries
found in animals not in humans
then found in human
not being spread much
being spread a lot
going to other cuntres
turned in to a pandemic